CN207315914U - High rigidity heavy-duty automobile brake device - Google Patents
High rigidity heavy-duty automobile brake device Download PDFInfo
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- CN207315914U CN207315914U CN201721421523.9U CN201721421523U CN207315914U CN 207315914 U CN207315914 U CN 207315914U CN 201721421523 U CN201721421523 U CN 201721421523U CN 207315914 U CN207315914 U CN 207315914U
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- plate
- brake
- shoe
- high rigidity
- brake device
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Abstract
The utility model belongs to automobile manufacture field, specifically disclose a kind of high rigidity heavy-duty automobile brake device, including back-plate and two brake-shoes, the fixing end of brake-shoe is equipped with inner cavity and the first loose slot, drawstring is connected between the fixing end of brake-shoe and free end, the drawstring, which is connected with, tightens unit, the unit that tightens includes the shaft of rotation connection in the lumen, ratchet and gear are coaxially installed with the shaft, swing rod is rotatably connected in shaft, one end of the swing rod through the first loose slot and is stretched out outside brake-shoe；Swing rod is equipped with active pawl, and the active pawl offsets with ratchet；Check pawl is fixed with inner cavity, the check pawl offsets with ratchet；The gear is engaged with the rack being connected with drawstring, and inner cavity is equipped with limiting plate, and the rack is slidably connected in limiting plate.This programme can be subject to a restoring force inwardly recovered by brake-shoe when opening, so as to play the role of slowing down the deformation velocity of brake-shoe.
Description
Technical field
The utility model belongs to automobile manufacture field, more particularly to a kind of brake component.
Background technology
Safety component of the brake as running car, plays a crucial role in car deceleration and braking.System
At work, cam acts on roller and promotes brake-shoe to be flared out dynamic device, so that the friction on brake-shoe
Piece produces with brake drum and rubs and play the role of braking or deceleration；During this, roller is promoting brake-shoe outward
Brake-shoe is also set to be subject to an extruding force outwards deformed at the same time, this extruding force can make brake-shoe produce becoming of outwards deforming
Gesture, brake-shoe for a long time be subject to such a extruding force outwards deformed to be easy to be deformed, and this deformation can not adjust or
Person recovers, and the deformation of brake-shoe can shorten the service life of itself and influence braking or the slowing effect of brake, seriously
When go back the personal safety of entail dangers to driver.
Utility model content
The purpose of this utility model is to provide a kind of high rigidity heavy-duty automobile brake device, to solve to brake in background technology
The problem of hoof is easily deformed.
In order to achieve the above object, the base case of the utility model provides high rigidity heavy-duty automobile brake device, including system
Dynamic bottom plate and two brake-shoes, back-plate are equipped with cam hole unit, and two brake-shoes are separately mounted to the two of back-plate
Side, is respectively connected with friction plate on the outside of each brake-shoe, and the end of each brake-shoe be rotatably connected to it is matched with cam
Roller；Resetting spring is connected between two brake-shoes, the fixing end of the brake-shoe is equipped with inner cavity and the first loose slot, braking
Drawstring is connected between the fixing end of hoof and free end, the drawstring, which is connected with, tightens unit, and the unit that tightens includes rotating
Shaft in the lumen is connected, ratchet and gear is coaxially installed with the shaft, swing rod, the pendulum is rotatably connected in shaft
One end of bar is through the first loose slot and stretches out outside brake-shoe；Swing rod is equipped with active pawl, the active pawl and ratchet phase
Support；Check pawl is fixed with inner cavity, the check pawl offsets with ratchet；The gear is engaged with the tooth being connected with drawstring
Bar, inner cavity are equipped with limiting plate, and the rack is slidably connected in limiting plate.
The principle of this base case is：
When cam rotation is to the position to offset with roller, roller is squeezed and promotes brake-shoe to be flared out, and makes peace
Friction plate on brake-shoe produces friction with brake drum, plays the role of braking or deceleration；Resetting spring quilt during this
Stretching, roller also make the free end of brake-shoe be subject to one outwards to deform while promoting brake-shoe free end to be flared out
Extruding force, this extruding force can make brake-shoe produce the trend outwards deformed and be acted on by drawstring on rack, make that tooth can be made
Bar produces and outwards skids off the trend of inner cavity, and gear can produce rack one and inside slide back to inner cavity and return by engage with rack
Multiple power, the extruding force that this restoring force is acted on the free end of brake-shoe by drawstring and is subject to brake-shoe free end offset
Disappear, so as to have the function that to slow down brake-shoe deformation velocity.After brake uses repeatedly, drawstring can be drawn out a certain distance simultaneously
In loose state, at this time, swing rod is pulled swing rod is moved in the first loose slot, swing rod drives ratchet by active pawl
Rotate clockwise, and check pawl can prevent ratchet from inverting.The rotation driven gear of ratchet rotates clockwise, the rotation of gear
Band carry-over bar moves up, and rack moves up the state that can be pulled drawstring and make drawstring be restored to tension, so as to ensure brake-shoe
Open when can be subject to one inwardly recover make restoring force, further slow down the deformation velocity of brake-shoe.
The beneficial effect of this base case is：
1st, this programme can be subject to a restoring force inwardly recovered by brake-shoe when opening, and slow down braking so as to play
The effect of the deformation velocity of hoof, and then extend the service life of brake；
2nd, this programme is connected the fixing end of brake-shoe and free end by drawstring, and keeps drawing using unit is tightened
The tension of rope, thus ensure brake-shoe open when can be subject to one inwardly recover make restoring force, slow down braking
The deformation velocity of hoof；
3rd, the unit that tightens of this programme realizes the adjusting to drawstring by the linkage of click structure, wheel and rack
With locking so that drawstring can provide a stable restoring force inwardly recovered, simple in structure and operation facility for brake-shoe；
4th, the limiting plate of this programme can be such that rack is moved along set direction, avoid rack in moving process because of production
Life is deviated and separated with gear.
Scheme two：This is the preferred of basic scheme, and the one end of the rack away from drawstring is connected with the first elastic component, described
First elastic component is fixed on inner cavity.First elastic component can strengthen the stability of rack, and can mitigate to a certain extent
The pulling force that gear is subject to, plays a protective role gear.
Scheme three：This is the preferred of basic scheme, and the swing rod is equipped with handle.Handle can be convenient for people to drawstring into
Row is adjusted.
Scheme four：This is the preferred of basic scheme, the cam hole unit include sequentially connected cam hole, phase support,
Buffer part and connecting portion, air bag is provided with the buffer part, and the air bag is equipped with several breather check valves and several
Outgassing nonreturn valve, buffer part surface are correspondingly provided with several air inlets and several gas outlets；It is slidably connected in the phase support
There is the first wedge block, be engaged at the top of first wedge block with cam；The connecting portion is provided with the second loose slot, and described second
The second elastic component is connected with loose slot, the free end of second elastic component is connected with the second wedge block, second wedge shape
The one end of block away from the second elastic component offsets with the first wedge block；Second wedge block is equipped with pressure ram, and the pressure ram is located at
Buffer part simultaneously offsets with air bag.The power being subject to can be disperseed to fall by air bag, achieveed the purpose that buffering, weakened and be delivered to connecting portion
Power, so as to slow down the deformation velocity of bottom plate, extend the service life of brake；Pass through the first wedge block, the second wedge block
And second elastic component cooperation, air bag is extruded, and using air bag spray gas cam is cleared up, cleaning side
Method is simple and need not be relatively low by extra power, cost.
Scheme five：This is preferred for scheme four, and the back-plate is equipped with reinforcing plate.Reinforcing plate can strengthen braking bottom
The intensity of plate, slows down the deformation velocity of back-plate, extends the service life of brake.
Scheme six：This is preferred for scheme five, and the back-plate uses aluminium alloy back-plate.Aluminium alloy back-plate
It can either ensure the intensity of back-plate, and can allow back-plate lighterization, comply with the trend of automotive light weight technology development.
Scheme seven：This is the preferred of basic scheme, and the brake-shoe includes hoof plate and gusset, and the hoof plate uses punching press hoof
Plate, the gusset use hot investment casting gusset.Casting gusset has the advantages that rigidity is big, intensity is big compared with former punching press gusset,
Alleviate the weight of gusset to greatest extent using precision casting process.
Scheme eight：This is preferred for scheme seven, several fabrication holes are equipped with the hoof plate and the gusset.Fabrication hole
Welding function can be improved and mitigate the weight of hoof plate and gusset.
Scheme nine：This is preferred for scheme eight, and the gusset is equipped with several ribs.Ribs can further increase
The rigidity of strengthening tendons plate.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model high rigidity heavy-duty automobile brake device；
Fig. 2 is the sectional view that unit is tightened in Fig. 1；
Fig. 3 is the enlarged drawing of cam hole unit in Fig. 1；
Fig. 4 is the sectional view of cam hole unit in Fig. 1.
Embodiment
The utility model is described in further detail below by embodiment：
Reference numeral in Figure of description includes：Back-plate 1, resetting spring 2, brake-shoe 3, friction plate 4, roller 5,
Inner cavity 6, drawstring 7, shaft 8, ratchet 9, active pawl 10, check pawl 11, swing rod 12, gear 13, rack 14, limiting plate 15,
First spring 16, cam hole 17, phase support 18, buffer part 19, connecting portion 20, the first wedge block 21, the second wedge block 22, first
Loose slot 23, second spring 24, air bag 25, air inlet 26, gas outlet 27, pressure ram 28, fabrication hole 29, the second loose slot 30,
Tighten unit 31, cam hole unit 32.
Embodiment is substantially as shown in Figure 1：
High rigidity heavy-duty automobile brake device, is mainly rubbed by a back-plate 1, the brake-shoe 3, two of resetting spring 2, two
4, two rollers 5 of pad are formed.Reinforcing plate is machined with back-plate 1, reinforcing plate can strengthen the intensity of back-plate 1, subtract
The deformation velocity of slow back-plate 1, extends the service life of brake.Back-plate 1 is closed using aluminium alloy back-plate 1, aluminium
Golden back-plate 1 can either ensure the intensity of back-plate 1, and can allow 1 lighterization of back-plate, comply with automobile light weight
Change the trend of development.
As shown in attached drawing 3 and attached drawing 4, cam hole unit 32 is installed on the right end of back-plate 1, and cam hole unit 32 is main
It is made of cam hole 17, phase support 18, buffer part 19 and connecting portion 20, cam hole 17 is opened in the right end of back-plate 1 and is used for
Cam axle is total to, cam is installed on camshaft.Air bag 25 is installed in buffer part 19, be provided with air bag 25 several into
Gas check valve and several outgassing nonreturn valves, breather check valve and outgassing nonreturn valve are disposed adjacent；The upper surface pair of buffer part 19
Several air inlets 26 and several gas outlets 27 should be provided with.The first wedge block 21, first wedge are slidably connected in phase support 18
21 upper end of shape block is engaged with cam, and bottom offsets with the second wedge block 22.The second loose slot 30 is provided with connecting portion 20,
Second spring 24 is welded with second loose slot 30, one end and the second spring 24 of the second wedge block 22 are welded, the second wedge block
The lower end of 22 other end and the first wedge block 21 offsets；Pressure ram 28 be welded on the top of the second wedge block 22 and with air bag 25
Offset, and the end face of pressure ram 28 is arc, end face will not be by gas when extruding air bag 25 for the pressure ram 28 of arc
Capsule 25 is broken, and extends the service life of air bag 25.
Two brake-shoes 3 are separately mounted to the both sides of back-plate 1, and the outside of two brake-shoes 3 has riveted one respectively
Friction plate 4, friction plate 4 can offset with brake drum plays the role of braking or deceleration.The right end of brake-shoe 3 is rotatably connected to rolling
Wheel 5, roller 5 is engaged with cam；Resetting spring 2 is connected between two brake-shoes 3.As shown in Figure 2, brake-shoe 3 is consolidated
6 and first loose slot 23 of inner cavity is machined with fixed end, shaft 8 is rotatably connected in inner cavity 6, ratchet 9 is coaxially installed with shaft 8
With gear 13, swing rod 12 is rotatably connected in shaft 8, swing rod 12 is through the first loose slot 23 and stretches out outside brake-shoe 3；Swing rod 12
On handle is installed；Active pawl 10 is connected with swing rod 12, active pawl 10 offsets with ratchet 9；Non-return is welded with inner cavity 6
Pawl 11, check pawl 11 offset with ratchet 9；Gear 13 is engaged with rack 14, and rack 14 is meshed with gear 13；On inner cavity 6
Limiting plate 15 is welded with, rack 14 is slidably connected in limiting plate 15.The upper end of rack 14 is connected with the first spring 16, the first bullet
Spring 16 is welded on inner cavity 6.
Brake-shoe 3 is made of hoof plate and gusset, and hoof plate uses punching press hoof plate, and gusset uses hot investment casting gusset.Cast muscle
Plate has the advantages that rigidity is big, intensity is big compared with former punching press gusset, and muscle is alleviated to greatest extent using precision casting process
The weight of plate.Several fabrication holes 29 are machined with hoof plate and gusset, fabrication hole 29 can improve welding function and mitigate hoof
The weight of plate and gusset.Several ribs are machined with gusset, ribs can further enhance the rigidity of gusset.
In work, when cam rotation is to the position to offset with roller 5, roller 5 is squeezed and promotes brake-shoe 3 outside
Open, the friction plate 4 for making to be installed on brake-shoe 3 produces friction with brake drum, plays the role of braking or deceleration；During this
Resetting spring 2 is stretched, and roller 5 is also subject to the free end of brake-shoe 3 while promoting 3 free end of brake-shoe to be flared out
One extruding force outwards deformed, this extruding force can make brake-shoe 3 produce the trend outwards deformed and be acted on by drawstring 7
On rack 14, make rack 14 can be made to produce the trend for outwards skidding off inner cavity 6, and gear 13 can be to rack by being engaged with rack 14
14, which produce one, inwardly slides back to the restoring forces of inner cavity 6, this restoring force acted on by drawstring 7 on the free end of brake-shoe 3 and with
The extruding force that 3 free end of brake-shoe is subject to offsets, so as to have the function that to prevent brake-shoe 3 from deforming.
After brake uses repeatedly, drawstring 7 can be drawn out a certain distance and be in loose state, at this time, pull
Swing rod 12 makes swing rod 12 be moved in the first loose slot 23, and swing rod 12 drives ratchet 9 to rotate clockwise by active pawl 10, and
Check pawl 11 can prevent ratchet 9 from inverting.The rotation driven gear 13 of ratchet 9 rotates clockwise, and the rotation of gear 13 drives
Rack 14 moves up, and rack 14 moves up the state that can be pulled drawstring 7 and make drawstring 7 be restored to tension.
During cam rotation, the camshaft being connected with cam is rotated in cam hole 17 and phase support 18 produced crowded
Pressure, the extruding force that phase support 18 is subject to are acted on the air bag 25 of buffer part 19, and the power being subject to is disperseed to fall by air bag 25, reaches slow
The purpose of punching, weakens the power for being delivered to connecting portion 20, so as to slow down the deformation velocity of back-plate 1.Cam is in rotation process
In can offset with the first wedge block 21 and move down the first wedge block 21, moving down for the first wedge block 21 can promote the second wedge
The direction of shape block 22 toward close second loose slot 30 is mobile and compresses second spring 24, and the second wedge block 22 is in moving process
Pressure ram 28 can be driven also toward close to the movement of the direction of the second loose slot 30 and to the generation extruding of air bag 25, to make the gas in air bag 25
Body is sprayed and acted on cam from outgassing nonreturn valve, and cam is cleared up, and is preventing the impurity effect such as dust cam just
Often work.When cam and the first wedge block 21 stagger, the extruding force that the first wedge block 21 is subject to disappears, and the second wedge block 22 exists
Pressure ram 28 can be driven to be moved toward the direction away from loose slot under the action of 24 restoring force of second spring, the extruding that air bag 25 is subject to
Power disappears and is gradually restored to original state, and gas is entered from breather check valve in air bag 25 during this, to air bag 25
In gas supplemented；The first wedge block of mobile promotion 21 of second wedge block 22 returns to initial position upwards.
Above-described is only the embodiment of the utility model, and the general knowledge such as known concrete structure and characteristic is herein in scheme
Do not describe excessively.It should be pointed out that for those skilled in the art, the premise of the utility model structure is not being departed from
Under, several modifications and improvements can also be made, these should also be considered as the scope of protection of the utility model, these are all without influence
The effect and practical applicability that the utility model is implemented.This application claims protection domain should be with the content of its claim
Subject to, the record such as embodiment in specification can be used for the content for explaining claim.
Claims (9)
1. high rigidity heavy-duty automobile brake device, including back-plate and two brake-shoes, back-plate are equipped with cam hole unit,
Two brake-shoes are separately mounted to the both sides of back-plate, and friction plate, and each braking are respectively connected with the outside of each brake-shoe
The end of hoof is rotatably connected to and the matched roller of cam；Resetting spring is connected between two brake-shoes, it is characterised in that
The fixing end of the brake-shoe is equipped with inner cavity and the first loose slot, and drawstring is connected between the fixing end of brake-shoe and free end,
The drawstring, which is connected with, tightens unit, and the unit that tightens includes rotation connection shaft in the lumen, coaxial in the shaft
Ratchet and gear are installed, swing rod is rotatably connected in shaft, braking through the first loose slot and is stretched out in one end of the swing rod
Outside hoof；Swing rod is equipped with active pawl, and the active pawl offsets with ratchet；Check pawl, the non-return are fixed with inner cavity
Pawl offsets with ratchet；The gear is engaged with the rack being connected with drawstring, and inner cavity is equipped with limiting plate, and the rack, which slides, to be connected
It is connected in limiting plate.
2. high rigidity heavy-duty automobile brake device according to claim 1, it is characterised in that：The rack away from drawstring one
End is connected with the first elastic component, and first elastic component is fixed on inner cavity.
3. high rigidity heavy-duty automobile brake device according to claim 1, it is characterised in that：The swing rod is equipped with handle.
4. high rigidity heavy-duty automobile brake device according to claim 1, it is characterised in that：The cam hole unit include according to
Cam hole, phase support, buffer part and the connecting portion of secondary connection, are provided with air bag in the buffer part, if the air bag is equipped with
Dry breather check valve and several outgassing nonreturn valves, buffer part surface is correspondingly provided with several air inlets and several outlets
Mouthful；The first wedge block is slidably connected in the phase support, is engaged at the top of first wedge block with cam；The connecting portion
The second loose slot is provided with, the second elastic component is connected with the loose slot, the free end of second elastic component is connected with second
Wedge block, the one end of second wedge block away from the second elastic component offset with the first wedge block；Second wedge block, which is equipped with, to be squeezed
Compression bar, the pressure ram are located at buffer part and offset with air bag.
5. high rigidity heavy-duty automobile brake device according to claim 4, it is characterised in that：The back-plate, which is equipped with, to be added
Strong plate.
6. high rigidity heavy-duty automobile brake device according to claim 5, it is characterised in that：The back-plate is closed using aluminium
Golden back-plate.
7. high rigidity heavy-duty automobile brake device according to claim 1, it is characterised in that：The brake-shoe include hoof plate and
Gusset, the hoof plate use punching press hoof plate, and the gusset uses hot investment casting gusset.
8. high rigidity heavy-duty automobile brake device according to claim 7, it is characterised in that：On the hoof plate and the gusset
It is equipped with several fabrication holes.
9. high rigidity heavy-duty automobile brake device according to claim 8, it is characterised in that：The gusset is equipped with several
Ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721421523.9U CN207315914U (en) | 2017-10-30 | 2017-10-30 | High rigidity heavy-duty automobile brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721421523.9U CN207315914U (en) | 2017-10-30 | 2017-10-30 | High rigidity heavy-duty automobile brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207315914U true CN207315914U (en) | 2018-05-04 |
Family
ID=62380093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721421523.9U Active CN207315914U (en) | 2017-10-30 | 2017-10-30 | High rigidity heavy-duty automobile brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207315914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552502A (en) * | 2020-11-26 | 2022-05-27 | 北汽福田汽车股份有限公司 | Pipeline fixing device and vehicle |
-
2017
- 2017-10-30 CN CN201721421523.9U patent/CN207315914U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552502A (en) * | 2020-11-26 | 2022-05-27 | 北汽福田汽车股份有限公司 | Pipeline fixing device and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190627 Address after: 400 900 Chongqing Shuangqiao via Liangfeng Yard, Shuangbei Road, Kai District (in Zhongdi Company) Patentee after: Chongqing Cambridge Industrial Co., Ltd. Address before: 400 900 Chongqing Shuangqiao Jingkai Industrial Park B7-1 Patentee before: Chongqing Zhongdi Machinery Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190809 Address after: 400 900 Chongqing Shuangqiao Jingkai Industrial Park B7-1 Patentee after: Chongqing Zhongdi Machinery Manufacturing Co., Ltd. Address before: 400 900 Chongqing Shuangqiao via Liangfeng Yard, Shuangbei Road, Kai District (in Zhongdi Company) Patentee before: Chongqing Cambridge Industrial Co., Ltd. |